Performance improvement of RoF transmission link by using 120° hybrid coupler in OSSB generation

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• 作者：Parvin Kumar ; Sanjay Kumar Sharma ; Shelly Singla
• 关键词：Optical single sideband (OSSB) ; Radio over fiber (RoF) ; Dual drive Mach Zehender modulator (DD ; MZM) ; Phase noise from a laser and an RF oscillator and signal to noise ratio (SNR)
• 刊名：Wireless Networks
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：23
• 期：1
• 页码：15-21
• 全文大小：
• 刊物类别：Computer Science
• 刊物主题：Communications Engineering, Networks; Computer Communication Networks; Electrical Engineering; IT in Business;
• 出版者：Springer US
• ISSN：1572-8196
• 卷排序：23

文摘

This paper presents an analysis, simulation and comparison of the performance of Optical single sideband radio over fiber system based on a dual drive Mach Zehender modulator using 90° and 120° hybrid coupler including the effects of phase noise from RF signal oscillator and laser source, fiber dispersion. Signal to noise ratio (SNR) is significantly influenced by phase noise from RF signal oscillator. On comparison with conventional 90° hybrid coupler system, the performance of the considered system improves by 0.78 dB in terms of SNR, when RF and laser phase noises are increased.